Application of Volume of Fluid (VOF) Method for Prediction of Wave Generated by Flow around Cambered Hydrofoil

The wave generated by flow around cambered hydrofoil NACA 4412 near free surface is predicted numerically in this study. To solve Reynolds Averaged Navier-Stokes (RANS) equation, two-dimensional implicit Finite Volume Method (FVM) is applied. The Realizable turbulence model has been implemented at different submergence depth to hydrofoil chord ratios (h/c) ranging from 1 to 5 for capturing the flow around the cambered hydrofoil in the free surface zone. The Volume Of Fluid (VOF) method has been applied to determine the free surface effect of water at an angle of attack of 50 by the hydrofoil. Firstly, the computed result at h/c = 1 is validated by comparing with the experimental one. Then the wave profiles, contours of velocity magnitude, velocity vectors, contours of static pressure near the hydrofoil surface are computed at Froude number (Fn) =1 for different h/c ratios.